Aptitude - Arithmetical Ability

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43.

The length of an edge of a hollow cube open at one face is √3 metres. What is the length of the largest pole that it can accommodate?                        
A. 2 metres B. 3 metres
C. 4 metres D. 3√3metres



44.

The perimeter of one face a of cube is 20 cm. Its volume must be                        
A. 125 cm3 B. 400 cm3
C. 1000 cm3 D. 8000 cm3



45.

The radii of the bases of a cylinder and a cone are in the ratio of 3 : 4 and It heights are in the ratio 2 : 3. Find the ratio of their volumes.                        
A. 9:8,2 B. 8:9,2
C. 2:9,4 D. 9:2,4




46.

The radii of two cylinders are in the ratio 3: 5 and their heights are in tbe ratio of 2 : 3. Find the ratio of their curved surface areas.                        
A. 2.5:5:3 B. 1:02:03
C. 2:01:04 D. 4:03:01



47.

The slant height of a right circular cone is 10 m and its height is 8 m. Find the area of its curved surface.                        
A. 30∏ m2 B. 40∏ m2
C. 60∏ m2 D. 80∏ m2



48.

The surface area of a cube is 1734 sq. cm. Find its volume.                        
A. 4913cm^3 B. 4915cm^3
C. 4213cm^3 D. 4923cm^3



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